Take-Two Interactive, which wholly owns Grand Theft Auto studio Rockstar Games, says that the games business is still growing, but that it's also becoming more expensive and risky."It's an expensive business, and the risk profile reflects that," Take-Two CEO Strauss Zelnick told Bloomberg TV. Zelnick also said that the hit ratio for a well-run interactive entertainment company is in the 80s, while the hit ratio for a well-run movie company is in the 30s comparison."That said, those very expensive production, marketing, overhead, in the case of sports titles, licensing, they do create a risk profile," Zelnick said.